Portion of a bottle



FIG. 1 is a front elevation view of a portion of a bottle showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right elevation view thereof; and,

FIG. 4 is a left elevation view thereof.

The dashed line shown in the drawings is for illustrative purposes only and forms no part of the claimed design.

The broken short dash-short dash-long dash line(s) in the drawings define the bounds of the claim and form no part thereof. 

The ornamental design for a portion of a bottle, as shown and described. 